Born and raised in Minnesota, Amos Jacobson came to the Ypsilanti, North Dakota community about 1907 or 1908. In 1909, he became one of the original stockholders of the Farmers State Bank of Ypsilanti. In 1912, he married Semilia Thompson.
Amos Jacobson was a carpenter. He built several homes and buildings in the community, including the one that he and Semilia lived in until their deaths.
Both Amos and Semilia were active in the Ypsilanti Lutheran Church, and other community organizations. Semiliar died in 1938, and Amos followed in 1960.